From a8b2f8288a3fdef8d93efef2b1ead7563004275e Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 25 Mar 2015 16:23:52 +0800 Subject: powerpc/pci: Create pci_dn for VFs pci_dn is the extension of PCI device node and is created from device node. Unfortunately, VFs are enabled dynamically by PF's driver and they don't have corresponding device nodes and pci_dn, which is required to access VFs' config spaces. The patch creates pci_dn for VFs in pcibios_sriov_enable() on their PF, and removes pci_dn for VFs in pcibios_sriov_disable() on their PF. When VF's pci_dn is created, it's put to the child list of the pci_dn of PF's upstream bridge. The pci_dn is linked to pci_dev during early fixup time to setup the fast path. [bhelgaas: add ifdef around add_one_dev_pci_info(), use dev_printk()] Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/pci-bridge.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 2c6dc2a3d14a..ece30f589398 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -156,6 +156,7 @@ struct iommu_table; struct pci_dn { int flags; +#define PCI_DN_FLAG_IOV_VF 0x01 int busno; /* pci bus number */ int devfn; /* pci device and function number */ @@ -188,6 +189,8 @@ struct pci_dn { extern struct pci_dn *pci_get_pdn_by_devfn(struct pci_bus *bus, int devfn); extern struct pci_dn *pci_get_pdn(struct pci_dev *pdev); +extern struct pci_dn *add_dev_pci_data(struct pci_dev *pdev); +extern void remove_dev_pci_data(struct pci_dev *pdev); extern void *update_dn_pci_info(struct device_node *dn, void *data); static inline int pci_device_from_OF_node(struct device_node *np, -- cgit v1.2.3